Home / 547,422.42-821,156.31-187,840.47

Finding the Fourth Proportional to 547,422.42, 821,156.31 and 187,840.47

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Solution

The fourth proportional to 547,422.42, 821,156.31 and 187,840.47 is: 281,768.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,422.42 : 821,156.31 = 187,840.47 : x
  2. Step 2: Convert to fraction form
    547,422.42/821,156.31 = 187,840.47/x
  3. Step 3: Cross multiply
    547,422.42x = 821,156.31 × 187,840.47
  4. Step 4: Simplify right side
    547,422.42x = 154,246,387,213.87
  5. Step 5: Solve for x
    x = 154,246,387,213.87/547,422.42
  6. Step 6: Final answer
    x = 281,768.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.